<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>头像形状</title>
    <style>
        #img2{
            border-radius: 50%;
            box-shadow: lightskyblue 5px 5px 200px;
        }
    </style>
</head>
<body>
<img src="image/photo.png">
<img id="img2" src="image/photo.png">
</body>
</html>